<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>float</title>
    <link rel="stylesheet" href="test.css">
</head>
<body>
<div class="head"></div>
<div class="main">
    <div class="left"></div>
    <div class="content">
        <div class="top"></div>
        <div class="bot"></div>
    </div>
    <div class="right"></div>
</div>
<div class="footer"></div>
</body>
</html>